package com.guigu.dh.filter;
/*

import com.alibaba.fastjson.JSONObject;
import com.guigu.dh.common.result.Result;
import com.guigu.dh.common.result.ResultCodeEnum;
import com.guigu.dh.common.utils.JWTUtil;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.core.io.buffer.DataBuffer;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.http.server.reactive.ServerHttpResponse;
import org.springframework.stereotype.Component;
import org.springframework.util.AntPathMatcher;
import org.springframework.util.ObjectUtils;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

import java.nio.charset.StandardCharsets;
import java.util.List;
*/

/**
 * 全局Filter，统一处理会员登录与外部不允许访问的服务
 *
 * @author DengHao
 * @date 2022-03-12
 */
//@Component
public class AuthGlobalFilter /*implements GlobalFilter, Ordered */{
/*

    private final AntPathMatcher antPathMatcher = new AntPathMatcher();
*/

//    @Override
//    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
//        ServerHttpRequest request = exchange.getRequest();
//        String path = request.getURI().getPath();
//        System.out.println("===" + path);

        //内部服务接口，不允许外部访问
//        if (antPathMatcher.match("/**/inner/**", path)) {
//            ServerHttpResponse response = exchange.getResponse();
//            return out(response, ResultCodeEnum.PERMISSION);
//        }

        //api接口，异步请求，校验用户必须登录
//        if (antPathMatcher.match("/api/**/auth/**", path)) {
//            String phone = this.getPhone(request);
//            if (ObjectUtils.isEmpty(phone)) {
//                ServerHttpResponse response = exchange.getResponse();
//                return out(response, ResultCodeEnum.LOGIN_AUTH);
//            }
//        }
//        return chain.filter(exchange);
//    }

   /* @Override
    public int getOrder() {
        return 0;
    }
*/
    /**
     * api接口鉴权失败返回数据
     *
     * @param response
     * @return
     */
   /* private Mono<Void> out(ServerHttpResponse response, ResultCodeEnum resultCodeEnum) {
        Result result = Result.build(null, resultCodeEnum);
        byte[] bits = JSONObject.toJSONString(result).getBytes(StandardCharsets.UTF_8);
        DataBuffer buffer = response.bufferFactory().wrap(bits);
        //指定编码，否则在浏览器中会中文乱码
        response.getHeaders().add("Content-Type", "application/json;charset=UTF-8");
        return response.writeWith(Mono.just(buffer));
    }*/

    /**
     * 获取当前登录用户id
     *
     * @param request
     * @return
     */
    /*private String getPhone(ServerHttpRequest request) {
        String token = "";
        List<String> tokenList = request.getHeaders().get("token");
        if (null != tokenList) {
            token = tokenList.get(0);
        }
        if (!ObjectUtils.isEmpty(token)) {
            return JWTUtil.getTokenPhone(token);
        }
        return null;
    }*/
}
